const char *
_eglQueryString(_EGLDriver *drv, _EGLDisplay *dpy, EGLint name)
{
(void) drv;
switch (name) {
case EGL_VENDOR:
return _EGL_VENDOR_STRING;
case EGL_VERSION:
_eglsnprintf(dpy->VersionString, sizeof(dpy->VersionString),
"%d.%d (%s)", dpy->VersionMajor, dpy->VersionMinor,
dpy->Driver->Name);
return dpy->VersionString;
case EGL_EXTENSIONS:
_eglUpdateExtensionsString(dpy);
return dpy->ExtensionsString;
case EGL_CLIENT_APIS:
_eglUpdateAPIsString(dpy);
return dpy->ClientAPIsString;
default:
_eglError(EGL_BAD_PARAMETER, "eglQueryString");
return NULL;
}
}
/**
* Return a list of colon-separated driver directories.
*/
static const char *
_eglGetSearchPath(void)
{
static char search_path[1024];
#if defined(_EGL_OS_UNIX) || defined(_EGL_OS_WINDOWS)
if (search_path[0] == '\0') {
char *buf = search_path;
size_t len = sizeof(search_path);
EGLBoolean use_env;
char dir_sep;
int ret;
#if defined(_EGL_OS_UNIX)
use_env = (geteuid() == getuid() && getegid() == getgid());
dir_sep = '/';
#else
use_env = EGL_TRUE;
dir_sep = '\\';
#endif
if (use_env) {
char *p;
/* extract the dirname from EGL_DRIVER */
p = getenv("EGL_DRIVER");
if (p && strchr(p, dir_sep)) {
ret = _eglsnprintf(buf, len, "%s", p);
if (ret > 0 && ret < len) {
p = strrchr(buf, dir_sep);
*p++ = ':';
len -= p - buf;
buf = p;
}
}
/* append EGL_DRIVERS_PATH */
p = getenv("EGL_DRIVERS_PATH");
if (p) {
ret = _eglsnprintf(buf, len, "%s:", p);
if (ret > 0 && ret < len) {
buf += ret;
len -= ret;
}
}
}
else {
_eglLog(_EGL_DEBUG,
"ignore EGL_DRIVERS_PATH for setuid/setgid binaries");
}
ret = _eglsnprintf(buf, len, "%s", _EGL_DRIVER_SEARCH_DIR);
if (ret < 0 || ret >= len)
search_path[0] = '\0';
_eglLog(_EGL_DEBUG, "EGL search path is %s", search_path);
}
#endif /* defined(_EGL_OS_UNIX) || defined(_EGL_OS_WINDOWS) */
return search_path;
}
